Note 6 - Goodwill and Intangible Assets (Tables)

3 Months Ended

Jun. 29, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

	June 29, 2014		March 30, 2014
Beginning balance	$	30,410	$	10,356
Goodwill additions		14,607		20,054
Ending balance	$	45,017	$	30,410

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	June 29, 2014							March 30, 2014
	Carrying Amount		Accumulated Amortization			Net Carrying Amount		Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortized intangible assets:
Existing technology		118,781	$	(39,357	)	$	79,424	$	63,043	$	(37,510	)	$	25,533
Customer relationships		15,145		(3,082	)		12,063		6,095		(2,762	)		3,333
Distributor relationships		7,244		(1,322	)		5,922		1,264		(1,260	)		4
Patents/Core technology		3,459		(3,395	)		64		3,459		(3,378	)		81
Trade names		1,330		(82	)		1,248		210		(51	)		159
Total intangible assets subject to amortization		145,959		(47,238	)		98,721		74,071		(44,961	)		29,110
In-process research and development		10,320		—			10,320		2,280		—			2,280
Total	$	156,279		(47,238	)		109,041		76,351		(44,961	)		31,390

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

	Three Months Ended
	June 29, 2014		June 30, 2013
Amortization expense	$	2,277	$	1,544

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Amortization Expense (by fiscal year)
2015 (9 months remaining)	$	11,901
2016		15,339
2017		14,406
2018		14,193
2019		12,993
2020 and thereafter		29,889
Total future amortization	$	98,721